Changing Price, QTY and ADD To Cart

A client is going customisation nuts to make it suit small devices like phones etc, seriously, getting me down. lol

I need to see how I can change the size of pricing, the QTY and the Add to cart buttons, BUT, at this time, ONLY on the product display page.

I changed the pricing size in the CSS, but of course everywhere that uses that changed, and I gather if I change the buttons, EVERY button would change.

Cheers

It you want to customize the CSS only for the buttons on the product page, you can use such CSS:
.hikashop_product_page input{
//my CSS
}